Question

State the major functions of the following:
(a) Plasma membrane (b) Ribosome
(c) Lysosome (d) Mitochondria
(e) Golgi apparatus (f) Cytoplasm
(g) Asters of centrosome (h) Chromosomes
(i) Glycogen granule (j) Vacuoles

Answer 1

The functions of the given are :

(a) Plasma membrane

• It separates the content of the cell from its surroundings.
  
• It regulates the entry of certain solids and ions into the cell.
  
• It maintains the shape of the cell that is the animal cell.
  

(b) Ribosome

• Its main function is Protein synthesis.
  

(c) Lysosome

• Intracellular digestion and Destroy foreign substances.
  
• When a cell is old or injured this rapidly destroy organelles hence called suicide bags.
  

(e) Golgi apparatus

• Synthesis and secretion of enzymes, hormones and etc.
  
• The formation of acrosome of sperm.
  

(d) Mitochondria

• Release of energy form pyruvic acid produced in the cytoplasm in the form of ATP and helps in the Synthesis of respiratory enzymes.
  

(f) Cytoplasm

• Different organelle is contained in it perform different functions.
  
• All metabolic activities occur in it.
  
• Medium of earlier steps of respiration
  

(g) Asters of centrosome

• Present in an animal cell and helps during the process of mitosis.
  

(h) Chromosomes

• Chromosomes carry hereditary information or genes.
  

(i) Glycogen granule

• Starch glycogen and fat containing granules serve as food for the cell.
  

(j) Vacuoles

• Storage of water and other substances, food pigments and waste products.
  
• Give turgidity to the plant cell by pressing against a cell wall.